sc::Tensor Class Reference
Inheritance diagram for sc::Tensor:
Public Member Functions | |
| Tensor (std::string filename, const Ref< MemoryGrp > &mem) | |
| std::string | filename () const |
| returns filename_ | |
| std::fstream * | file () |
| returns MemoryGrpRegion for this tensor | |
| void | set_filesize (long i) |
| set/get the filesize of the tensor | |
| long | get_filesize () const |
| void | createfile () |
| create/delete the distributed file for the tensor | |
| void | deletefile () |
| void | input_offset (long tag, long offset) |
| input for the hash table | |
| void | get_block (long tag, double *data) |
| get a block from the distributed file (non-blocking) | |
| void | add_block (long tag, double *data) |
| add a block to the distributed file (non-blocking); double* data will be destroyed | |
| void | put_block (long tag, double *data) |
| put a block to the distributed file (non-blocking) | |
| bool | exists (long tag) const |
| does this block exist? | |
| bool | is_this_local (long tag) |
| returns if a block associated with long tag resides in a local memory or not | |
| void | zero () |
| initialize/clear tensors to zero | |
| void | assign (double a) |
| assigns all values to a | |
| double | norm () const |
| obtain the norm of a tensor | |
| double | ddot (Ref< Tensor > &) const |
| obtain the ddot of two tensors | |
| Ref< Tensor > | copy () const |
| return a copy of self | |
| Ref< Tensor > | clone () const |
| return a tensor that have the same hashtable, and is intilaized to zero | |
| void | daxpy (const Ref< Tensor > &, double) |
| perform daxpy of tensors (self+=a*other) | |
| void | scale (double a) |
| scale self by a | |
| void | sync () const |
| sync | |
| void | print (const std::string &label, std::ostream &os=ExEnv::out0()) const |
| print | |
 Public Member Functions inherited from sc::RefCount | |
| size_t | identifier () const |
| Return the unique identifier for this object that can be compared for different objects of different types. More... | |
| int | lock_ptr () const |
| Lock this object. | |
| int | unlock_ptr () const |
| Unlock this object. | |
| void | use_locks (bool inVal) |
| start and stop using locks on this object | |
| refcount_t | nreference () const |
| Return the reference count. | |
| refcount_t | reference () |
| Increment the reference count and return the new count. | |
| refcount_t | dereference () |
| Decrement the reference count and return the new count. | |
| int | managed () const |
| void | unmanage () |
| Turn off the reference counting mechanism for this object. More... | |
Protected Member Functions | |
| std::vector< long > | determine_filesizes () |
| determines the distribution of blocks to nodes | |
| Protected Member Functions inherited from sc::RefCount | |
| RefCount (const RefCount &) | |
| RefCount & | operator= (const RefCount &) |
Protected Attributes | |
| const Ref< MemoryGrp > & | mem_ |
| std::string | filename_ |
| for use in disk-based algorithm | |
| std::map< long, long > | hash_table_ |
| hash table: hash_table_.insert(key,offset) | |
| long | filesize_ |
| tensor size in double | |
| std::fstream * | file_ |
| data area | |
| bool | file_allocated_ |
The documentation for this class was generated from the following file:
- src/lib/chemistry/qc/ccr12/tensor.h